BySide: D-Day Countdown
Anniversaries & Photo Widgets
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Keep the days that matter by your side.
The day you met, Mom's birthday, your wedding anniversary, an exam or a trip. BySide counts down to — or up from — the days that matter, and reminds you before they arrive.
■ Timeline and calendar
• See upcoming days grouped by this week, this month and each month, with a badge on 100-day milestones.
• Jump to any month or year in the Calendar tab, and tap a date to start a new D-Day.
• Holidays from your device calendar appear in the calendar and widgets.
■ A D-Day album decorated with your photos
• Add a photo to each D-Day and browse them as photo tiles, like an album.
• Crop and rotate each photo to fit just right.
• Choose from four views — list, cards, album or calendar. Your last view is remembered.
■ A reminder every 100 days
• Count your days together with D+, and 100, 200 and 1,000-day milestones are calculated for you.
• Get reminded on the day, and 1, 3 or 7 days before.
• Set a different reminder time for each D-Day.
■ Repeats on its own
• Birthdays and anniversaries repeat yearly; paydays and card bills repeat monthly.
■ Your first D-Day, together
• When you first open the app, just pick what kind of day it is. Relationship, birthday, or exam & deadline — the settings are filled in to match.
■ Home screen widgets
• One D-Day shown big with its photo, several D-Days in a list, or this month's calendar.
• Style the widgets to match your wallpaper.
• Show the days left for a chosen D-Day as a badge on the app icon.
■ Share as photo cards
• Make a card with a photo background and send it to friends in your favorite messaging or social apps.
• Save the card image straight to your photo library.
■ Neat and tidy
• Create your own categories like Couple, Family or Work, with colors and emoji
• Sort by nearest, manually, recently added or by name, and pin to top
• D-Days you won't need afterward, like exams and deadlines, can be cleared automatically the next day
• Memos, search, month/year view and dark mode
■ Use with peace of mind
• Start right away, no sign-up
• Your D-Days and photos are stored only on your iPhone
• Backup files include your photos, so everything comes with you to a new phone
■ Remove ads with a one-time purchase
• Removes all ads in the app.
• Not a subscription — no recurring charges.
All features are free; the free version shows ads.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy policy: https://boksday.github.io/dday/privacy/
Contact: ekqlszzzz@naver.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Cleaner category chips, and the selection glides from one to the next.
• List, card, album and timeline views switch smoothly, and D-Days slide in as they appear.
• Small touches: cards press in, checkmarks pop, and the big number on each D-Day grows in.
The developer, Naegyeotui, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Naegyeotui
- Size
- 54.8 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- 광고 제거 / Remove Ads $3.99
- Copyright
- © 2026 내곁의

